I Photo-shopped the stamp formats from scratch and added the Queens head, class and Tiptree Heath text.
The poor fly sits at 3rd class (we don't even have a 3rd class :oD ) whilst the Blue Tit has the honour of being 1st class as he's at the top of this particular food chain :o)
Hope you like em ;o)
Ps, thanks for all the cakes to keep us going Anna-x-